Machimosaurus hugii

Uncredited · CC BY-SA 4.0 · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MachimosaurusPBDB
- Diet
- carnivorePBDB, for Thalattosuchia
- Life habit
- nektonicPBDB, for Thalattosuchia
- Motility
- actively mobilePBDB, for Thalattosuchia
- Environment
- marinePBDB, for Thalattosuchia
Time the record covers
At least 12 million years on record.
The record covers at least 161.5 Mya to 149.2 Mya. No occurrence read is dated outside 165.3 Mya to 143.1 Mya.
20 occurrences of Machimosaurus hugii on record, most of them in the Late Jurassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
20 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
10 formations
- Alcobaça Formation2
- Sables de Glos Formation1
- Oxford Clay Formation · Ancholme Group1
- Raetschenbank Formation1
- Mont-Lambert Formation1
- Calcaires marneux à Ptérocères Formation1
Loading coastlines…
The named rock units Machimosaurus hugii has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.
Machimosaurus hugii and its relatives
Late JurassicWhere Machimosaurus hugii and its relatives were recorded in the Late Jurassic.
Found in the same rock
184 taxa- Sauropoda5 sites
- Theropoda5 sites
- Pterosauria4 sites
- Lepidotes3 sites
- Asteracanthus2 sites
- Caturus2 sites
- Goniopholis undidens2 sites
- Hybodus2 sites
- Ichthyosaurus2 sites
- Microdon2 sites
- Plesiosauria2 sites
- Plesiosaurus2 sites
- Rhamphorhynchidae2 sites
- Steneosaurus2 sites
- Testudines2 sites
- Tetanurae2 sites
- Acrodus1 site
- Actinopterygii1 site
- Allosaurus1 site
- Amiidae1 site
- Anura1 site
- Archaeopterygiformes1 site
- Athrodon boloniensis1 site
- Autobranchia1 site
The Paleobiology Database records 18 sites for Machimosaurus hugii, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
12 references- Revision of the Late Jurassic teleosaurid genus Machimosaurus (Crocodylomorpha, Thalattosuchia)5
- Mémoire sur les dinosauriens et les crocodiliens des terrains jurassiques de Boulogne-sur-Mer [Memoir on the dinosaurs and crocodilians of the Jurassic deposits of Boulogne-sur-mer]3
- De Jura-Krokodilier Machimosaurus H. v. Meyer2
- Memoire sur le genre Machimosaurus2
- The Late Jurassic crocodiles of the Langenberg near Oker, Lower Saxony (Germany), and description of related materials (with remarks on the history of quarrying the “Langenberg Limestone” and “Obernkirchen Sandstone”)1
- Zonation biostratigraphique et nouveaux restes de Vertébrés dans les "Sables de Glos" (Oxfordien supérieur, Normandie) [Biostratigraphic zonation and new vertebrate remains in the "Sables de Glos" (upper Oxfordian, Normandy)]1
- Presence du crocodilien Machimosaurus hugii (Mesosuchia, Teleosauridae) dans le Kimmeridgien de Normandie [Presence of the crocodilian Machimosaurus hugii (Mesosuchia, Teleosauridae) in the Kimmeridgian of Normandy]1
- Le crocodilien Machimosaurus von Meyer (Mesosuchia, Teleosauridae) dans le Kimmeridgian de l'Ain1
- Andrews, 19131
- Les Poissons et les Reptiles du Jurassique supérieur de Fumel (Lot-et-Garonne) [The fishes and reptiles from the Upper Jurassic of Fumel (Lot-et-Garonne)]1
- Sur les Reptiles trouvés dans le Portlandien supérieur de Boulogne-sur-Mer [On the reptiles found in the upper Portlandian of Boulogne-sur-Mer]1
- Sur une dent de Neosodon trouvée dans les sables ferrugineux de Wimille [On a tooth of Neosodon found in the ferruginous sandstone of Wimille]1
Each of the 20 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2

Picture of Machimosaurus hugii
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Machimosaurus hugii · nms:paleontology:NMSO 7039
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMachimosaurus through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Meyer 1837)